iPhone 12 losing service

Received my iPhone 12 Pro on Friday. Activated it on Saturday. Sunday I drove for 10 mns and when I arrive to my destination I saw no reception bars and No Service. And in the middle of the screen in a grey box: Your iPhone is not Activated.

The only way to get the connection back was to toggle Airplane mode to ON then OFF.

The iPhone had the cellular mode to 5G Auto. I switched it to LTE to test. And it was the same.

So I resetted the network settings: same issue and I resetted the iPhone as a new iPhone and reinstalled everything from scratch (not from a saved backup): same issue.

I drove my car and found the exact location where the phone lost the network. If the phone lost the network it means I reach the end of the coverage area from a certain antenna. It looks like something happened with the phone when I reach a zone covered by a new antenna.

I called my operator and they told me that everything is good on their end and I have the right SIM card for a 5G device.

I called the Apple Tech Support and they remotely installed on my phone two profiles:

• Baseband and Telephony Logging
• CFNetwork Diagnostics

I was able to replicate the issue after talking to the Apple Tech and I was able to submit the report.

I pushed a little bit the research and I found on Reddit a lot of people talking about the same issue not only on Verizon (my carrier) but also on AT&T. Just use the title I typed and you will find the article.

I never had such issue with the 11pro.

[Re-Titled by Moderator]